Observation of multiple surface states in naturally cleavable chiral crystal PdSbSe
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arXiv
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| Autori principali: | , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916653935099904 |
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| author | Jiang, Zhicheng Liu, Zhengtai Hua, Chenqiang Liu, Xiangqi Yang, Yichen Ding, Jianyang Liu, Jiayu Liu, Jishan Ye, Mao Dai, Ji Tallarida, Massimo Guo, Yanfeng Lu, Yunhao Shen, Dawei |
| author_facet | Jiang, Zhicheng Liu, Zhengtai Hua, Chenqiang Liu, Xiangqi Yang, Yichen Ding, Jianyang Liu, Jiayu Liu, Jishan Ye, Mao Dai, Ji Tallarida, Massimo Guo, Yanfeng Lu, Yunhao Shen, Dawei |
| contents | Chiral multifold fermions in solids exhibit unique band structures and topological properties, making them ideal for exploring fundamental physical phenomena related to nontrivial topology, chirality, and symmetry breaking. However, the challenge of obtaining clean, flat surfaces through cleavage has hindered the investigation of their unique electronic states. In this study, we utilize high-resolution angle-resolved photoemission spectroscopy and density functional theory calculations to investigate the low-energy electronic structure of the cleavable single-crystal PdSbSe. Our combined experimental and theoretical analysis reveals the presence of multifold degenerate fermions within this chiral crystal. We also observe multiple chiral Fermi arc surface states and spin-splitting behavior in the associated bulk bands. These findings provide unique insights into chiral, multifold fermionic states in easily cleavable crystals and offer a robust platform for further research into their unique electronic properties and potential applications in novel electronic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_12798 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Observation of multiple surface states in naturally cleavable chiral crystal PdSbSe Jiang, Zhicheng Liu, Zhengtai Hua, Chenqiang Liu, Xiangqi Yang, Yichen Ding, Jianyang Liu, Jiayu Liu, Jishan Ye, Mao Dai, Ji Tallarida, Massimo Guo, Yanfeng Lu, Yunhao Shen, Dawei Materials Science Chiral multifold fermions in solids exhibit unique band structures and topological properties, making them ideal for exploring fundamental physical phenomena related to nontrivial topology, chirality, and symmetry breaking. However, the challenge of obtaining clean, flat surfaces through cleavage has hindered the investigation of their unique electronic states. In this study, we utilize high-resolution angle-resolved photoemission spectroscopy and density functional theory calculations to investigate the low-energy electronic structure of the cleavable single-crystal PdSbSe. Our combined experimental and theoretical analysis reveals the presence of multifold degenerate fermions within this chiral crystal. We also observe multiple chiral Fermi arc surface states and spin-splitting behavior in the associated bulk bands. These findings provide unique insights into chiral, multifold fermionic states in easily cleavable crystals and offer a robust platform for further research into their unique electronic properties and potential applications in novel electronic devices. |
| title | Observation of multiple surface states in naturally cleavable chiral crystal PdSbSe |
| topic | Materials Science |
| url | https://arxiv.org/abs/2503.12798 |